Passive earth-pressure coefficients by upper-bound numerical limit analysis

被引：1
|
作者：
Antao, Armando N. [1 ]
Santana, Teresa G. [1 ]
da Silva, Mario Vicente [1 ]
da Costa Guerra, Nuno M. [1 ]
机构：
[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Civil Engn, UNIC, P-2829516 Caparica, Portugal
来源：
CANADIAN GEOTECHNICAL JOURNAL | 2011年 / 48卷 / 05期
关键词：
three-dimensional passive earth-pressure coefficients; upper-bound numerical analysis; finite elements;
D O I：
10.1139/T10-103
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
A three-dimensional (3D) numerical implementation of the limit analysis upper-bound theorem is used to determine passive horizontal earth-pressure coefficients. An extension technique allowing determination of the 3D passive earth pressures for any width-to-height ratios greater than 7 is presented. The horizontal passive earth-pressure coefficients are presented and compared with solutions published previously. Results of the ratio between the 3D and two-dimensional horizontal passive earth-pressure coefficients are shown and found to be almost independent of the soil-to-wall friction ratio. A simple equation is proposed for calculating this passive earth-pressure ratio.
引用
收藏
页码：767 / 780
页数：14
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